Function interpFromParent

src/traces/treemap/plot_one.js:332–344

(pt, onPathbar)

    };

    var interpFromParent = function(pt, onPathbar) {
        var parentPrev;
        var i = 0;
        var Q = pt;
        while(!parentPrev && i < maxDepth) { // loop to find a parent/grandParent on the previous graph
            i++;
            Q = Q.parent;
            if(Q) {
                parentPrev = getPrev(Q, onPathbar);
            } else i = maxDepth;
        }
        return parentPrev || {};
    };

    var makeExitSliceInterpolator = function(pt, onPathbar, refRect, size) {
        var prev = getPrev(pt, onPathbar);